单项选择题

A．Susan is busy setting up a home officeB．Mark is busy ……

What can we learn from the conversation

A．Susan is busy setting up a home office
B．Mark is busy opening a shop.
C．Susan is busy programming a computer.

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单项选择题What is Susan's trouble now

A．She is short of money
B．Her computer doesn't work.
C．She felt exhausted.